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Finding the Fourth Proportional to 404,515.59, 557,995.80 and 259,269.63

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Solution

The fourth proportional to 404,515.59, 557,995.80 and 259,269.63 is: 357,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,515.59 : 557,995.80 = 259,269.63 : x
  2. Step 2: Convert to fraction form
    404,515.59/557,995.80 = 259,269.63/x
  3. Step 3: Cross multiply
    404,515.59x = 557,995.80 × 259,269.63
  4. Step 4: Simplify right side
    404,515.59x = 144,671,363,487.33
  5. Step 5: Solve for x
    x = 144,671,363,487.33/404,515.59
  6. Step 6: Final answer
    x = 357,641.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.